Diverse chart types are often employed, like line charts, bar graphs, and pie charts. Among the different chart types, line charts stand out for various reasons.

Understanding bar charts When you read a bar chart, remember the bars should all have an equal width. The length of each bar shows a certain amount. Look at the title first.

William Playfair, data visualisation, bar graph, pie chart, line graph, Scottish engineer, statistical graphics, The Commercial and Political Atlas, The Statistical Breviary, 18th-century innovations ...

Learn about line graphs with this BBC Bitesize Maths article. For students between the ages of 11 and 14.